The BMW R75 is a global Warfare II-era motorcycle and sidecar blend produced by the German company BMW.
Inside the 1930s BMW were producing a number of popular and highly effective motorcycles. In 1938 development of the R75 started in reaction to a need from the German Army.
Preproduction types of the R75 were run by the 750 cc side valve engine, which was based on the R71 engine unit. Nonetheless it was quickly found necessary to design an all-new OHV 750 cc engine unit for the R75 product. This OHV engine later proved to be the basis for following post-war twin BMW engines like the R51/3, R67 and R68.
The 3rd side-car wheel was motivated with an axle connected to the trunk wheel of the motorcycle. They were equipped with a locking differential and selectable highway and off-road gear ratios by which all and reverse gears functioned. This made the R75 highly manoeuvrable and capable of negotiating most floors. A few other motorcycle manufactures, like FN and Norton, provided an optional drive to sidecars.
The BMW R75 and its rival the Z?ndapp KS 750 were both extensively used by the Wehrmacht in Russia and North Africa, though after a period of evaluation it became clear that the Z?ndapp was the superior machine. In August 1942 Z?ndapp and BMW, on the urging of the Army, agreed upon standardization of parts for both machines, with a view of eventually creating a Z?ndapp-BMW hybrid (designated the BW 43), when a BMW 286/1 side-car would be grafted onto a Z?ndapp KS 750 motorcycle. In addition they decided that the produce of the R75 would stop once production reached 20,200 devices, and after that point BMW and Z?ndapp would only produce the Z?ndapp-BMW machine, manufacturing 20,000 every year.
Since the focus on of 20,200 BMW R75's was not reached, it remained in production until the Eisenach stock was so terribly damaged by Allied bombing that creation ceased in 1944. An additional 98 models were assembled by the Soviets in 1946 as reparations.
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